Matched Pair RCA 6FQ7 / 6CG7 Vacuum Tubes February 24 2026 It measured 58/56 where minimum

It measured 58/56 where minimum (65%) is 40/40 and 100% is 62/62

new in box GE 12DB5 tubes tested to spec on our Paul Hart-calibrated TV7/U

The title says it all

US-made 7C7 tubes in this lot

Matched Pair RCA 6FQ7 / 6CG7 Vacuum Tubes February 24 2026 It measured 58/56 where minimumThis matched pair of RCA 6FQ7 6CG7 dual triodes was tested on our TV7 U for shorts, gas and transconductance. There were no shorts or gas and their readings are as follows: Tube One measured 56 58 while Tube Two measured 59 56 where minimum (65%) is 50 50 and 100% is 77 77. These tubes have steel support rods; ladder plates; side D getters and excellent flashing. As I write, I am playing them with adapters (not included) in my Alan Eaton single ended